By David Shaw, 3 October 2019
A magnifying glass can bend light waves to make an object look bigger. Can you make a magnifying glass for sound waves too?
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By David Shaw, 27 June 2019
In this hands-on activity, you’ll make your own vacuum chamber and watch marshmallows turn into fluffy clouds of sugar!
By David Shaw, 21 February 2019
Here’s a classic activity with a showy twist. Surprise your friends by inverting a water bottle without spilling its contents!
